Phosphotungstic acid-assisted preparation of carbon nanotubes-supported uniform Pt and Pt bimetallic nanoparticles, and their enhanced catalytic activity on methanol electro-oxidation
Source abstract
Abstract
A 3–4 nm thickness of phosphotungstic acid (H3PW12O40, PW) layer is deposited on to the surface of multiwalled carbon nanotubes (MWCNTs) via sorption by ultrasonic method. These PW/MWCNT hybrids can be used as the promising supports for anode catalysts of the direct methanol fuel cell (DMFC). A facile polyol thermo-reduction method has been put forward to prepare PtIr (PtRu or Pt)/PW/MWCNT hybrids. In the presence of PW, PtIr (PtRu or Pt) nanoparticles can be uniformly dispersed on the surface of the MWCNTs in high density with a small size and a narrow distribution, and these Pt and Pt bimetallic catalysts exhibit a significantly improved electrochemically active surface area and a remarkably enhanced activity toward methanol oxidation. Besides, these Pt and Pt bimetallic catalysts on PW/MWCNT hybrids also show longer operation stability and higher CO tolerance as well as better cell performance compared with those on MWCNTs without PW. The evaluation of anode catalysts in DMFC indicates that the observed power density depends on the intrinsic property of the size, dispersion and composition of Pt and Pt bimetallic catalysts.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Fuel Cells and Related Materials · Electrochemical Analysis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
Show source-provided references
1. Aricò AS, Srinivasan S, Antonucci V (2001) DMFCs-from fundamental aspects to technology development. Fuel Cells 1:133–16110.1002/1615-6854(200107)1:2<133::AID-FUCE133>3.0.CO;2-5 ↗
2. Basri S, Kamarudin SK, Daud WRW, Yaakub Z (2010) Nanocatalyst for direct methanol fuel cell (DMFC). Int J Hydrogen Energ 35:7957–797010.1016/j.ijhydene.2010.05.111 ↗
3. Blum A, Duvdevani T, Philosoph M, Rudoy N, Peled E (2003) Water-neutral micro direct-methanol fuel cell (DMFC) for portable applications. J Power Sources 117:22–2510.1016/S0378-7753(03)00310-0 ↗
4. Chan KY, Ding J, Ren JW, Cheng SA, Tsang KY (2004) Supported mixed metal nanoparticles as electrocatalysts in low temperature fuel cells. J Mater Chem 14:505–51610.1039/b314224h ↗
5. Cui ZM, Xing W, Liu CP, Tian D, Zhang H (2010) Synthesis and characterization of H5PMo10V2O40 deposited Pt/C nanocatalysts for methanol electrooxidation. J Power Sources 195:1619–162310.1016/j.jpowsour.2009.09.040 ↗
6. Eguiluz KIB, Salazar-Banda GR, Miwa D, Machado SAS, Avaca LA (2008) Effect of the catalyst composition in the Pt x (Ru − Ir)1−x/C system on the electro-oxidation of methanol in acid media. J Power Sources 179:42–4910.1016/j.jpowsour.2007.12.070 ↗
7. Fei B, Lu HF, Hu ZG, Xin JH (2006) Solubilization, purification and functionalization of carbon nanotubes using polyoxometalate. Nanotechnology 17:1589–159310.1088/0957-4484/17/6/010 ↗
8. Ghosh S, Raj CR (2010) Facile in situ synthesis of multiwall carbon nanotube supported flowerlike Pt nanostructures: an efficient electrocatalyst for fuel cell application. J Phys Chem C 114:10843–1084910.1021/jp100551e ↗
9. Girishkumar G, Hall TD, Vinodgopal K, Kamat PV (2006) Single wall carbon nanotube supports for portable direct methanol fuel cells. J Phys Chem B 110:107–11410.1021/jp054764i ↗
10. Han DM, Guo ZP, Zhao ZW, Zeng R, Meng YZ, Shu D, Liu HK (2008) Polyoxometallate-stabilized Pt–Ru catalysts on multiwalled carbon nanotubes: influence of preparation conditions on the performance of direct methanol fuel cells. J Power Sources 184:361–36910.1016/j.jpowsour.2008.03.051 ↗
11. Hsin YL, Hwang KC, Yeh C-T (2007) Poly(vinylpyrrolidone)-modified graphite carbon nanofibers as promising supports for PtRu catalysts in direct methanol fuel cells. J Am Chem Soc 129:9999–1001010.1021/ja072367a ↗
12. Huang T, Jiang RR, Liu JL, Zhuang JH, Cai WB, Yu AS (2009) Synthesis of well-dispersed PtRuSnO x by ultrasonic-assisted chemical reduction and its property for methanol electrooxidation. Electrochim Acta 54:4436–444010.1016/j.electacta.2009.03.020 ↗
13. Huang HJ, Sun DP, Wang X (2011) Low-defect MWNTPt nanocomposite as a high performance electrocatalyst for direct methanol fuel cells. J Phys Chem C 115:19405–1941210.1021/jp204293h ↗
14. Hull RV, Li L, Xing YC, Chusuei CC (2006) Pt nanoparticle binding on functionalized multiwalled carbon nanotubes. Chem Mater 18:1780–178810.1021/cm0518978 ↗
15. Jalil PA, Faiz M, Tabet N, Hamdan NM, Hussain Z (2003) A study of the stability of tungstophosphoric acid, H3PW12O40, using synchrotron XPS, XANES, hexane cracking, XRD, and IR spectroscopy. J Catal 217:292–29710.1016/S0021-9517(03)00066-6 ↗
16. Li SW, Yu XL, Zhang GG, Ma Y, Yao JN, de Oliveira P (2011) Green synthesis of a Pt nanoparticle/polyoxometalate/carbon nanotube tri-component hybrid and its activity in the electrocatalysis of methanol oxidation. Carbon 49:1906–191110.1016/j.carbon.2011.01.015 ↗
17. Pan DW, Chen JH, Tao WY, Nie LH, Yao SZ (2006) Polyoxometalate-modified carbon nanotubes: new catalyst support for methanol electro-oxidation. Langmuir 22:5872–587610.1021/la053171w ↗
18. Paulus UA, Endruschat U, Feldmeyer GJ, Schmidt TJ, Bönnemann H, Behm RJ (2000) New PtRu alloy colloids as precursors for fuel cell catalysts. J Catal 195:383–39310.1006/jcat.2000.2998 ↗
19. Rajesh B, Karthik V, Karthikeyan S, Thampi KR, Bonard JM, Viswanathan B (2002) Pt–WO3 supported on carbon nanotubes as possible anodes for direct methanol fuel cells. Fuel 81:2177–219010.1016/S0016-2361(02)00162-X ↗
20. Sen S, Sen F, Gökağac G (2011) Preparation and characterization of nano-sized Pt-Ru/C catalysts and their superior catalytic activities for methanol and ethanol oxidation. Phys Chem Chem Phys 13:6784–679210.1039/c1cp20064j ↗
21. Seo MH, Choi SM, Kim HJ, Kim JH, Cho BK, Kim WB (2008) A polyoxometalate-deposited Pt/CNT electrocatalyst via chemical synthesis for methanol electrooxidation. J Power Sources 179:81–8610.1016/j.jpowsour.2007.12.107 ↗
22. Shimizu T, Momma T, Mohamedi M, Osaka T, Sarangapani S (2004) Design and fabrication of pumpless small direct methanol fuel cells for portable applications. J Power Sources 137:277–28310.1016/j.jpowsour.2004.06.008 ↗
23. Sun ZY, Wang X, Liu ZM, Zhang HY, Yu P, Mao LQ (2010) Pt–Ru/CeO2/carbon nanotube nanocomposites: an efficient electrocatalyst for direct methanol fuel cells. Langmuir 26:12383–1238910.1021/la101060s ↗
24. Watanabe M, Motoo S (1975) Electrocatalysis by ad-atoms: part II. Enhancement of the oxidation of methanol on platinum by ruthenium ad-atoms. J Electroanal Chem 60:267–27310.1016/S0022-0728(75)80261-0 ↗
25. Wu B, Hu D, Kuang Y, Liu B, Zhang X, Chen J (2009) Functionalization of carbon nanotubes by an ionic-liquid polymer: dispersion of Pt and PtRu nanoparticles on carbon nanotubes and their electrocatalytic oxidation of methanol. Angew Chem Int Ed 48:4751–475410.1002/anie.200900899 ↗
26. Yang D-Q, Sacher E (2008) Strongly enhanced interaction between evaporated Pt nanoparticles and functionalized multiwalled carbon nanotubes via plasma surface modifications: effects of physical and chemical defects. J Phys Chem C 112:4075–408210.1021/jp076531s ↗
27. Yang D-Q, Sun SH, Dodelet J, Sacher E (2008) A facile route for the self-organized high-density decoration of Pt nanoparticles on carbon nanotubes. J Phys Chem C 112:11717–1172110.1021/jp802371p ↗
28. Yin A-X, Min X-Q, Zhu W, Wu H-S, Zhang Y-W, Yan C-H (2012) Multiply twinned Pt-Pd nanoicosahedrons as highly active electrocatalysts for methanol oxidation. Chem Commun 48:543–54510.1039/C1CC16482A ↗
29. Yuan JH, Chen YX, Han DX, Zhang YJ, Shen YF, Wang ZJ, Niu L (2006) Synthesis of highly faceted multiply twinned gold nanocrystals stabilized by polyoxometalates. Nanotechnology 17:4689–469410.1088/0957-4484/17/18/027 ↗
30. Yuan JH, Jin XL, Li N, Chen JR, Miao JG, Zhang QX, Niu L, Song JX (2011) Large scale load of phosphotungstic acid on multiwalled carbon nanotubes with a grafted poly(4-vinylpyridine) linker. Electrochim Acta 56:10069–1007610.1016/j.electacta.2011.08.093 ↗
31. Zhang J, Ting BP, Koh YT, Ying JY (2011) Synthesis of metallic nanoparticles using electrogenerated reduced forms of [a-SiW12O40]4− as both reductants and stabilizing agents. Chem Mater 23:4688–469310.1021/cm201166t ↗
32. Zhong YL, Ng W, Yang J-X, Loh KP (2009) Electrostatically self-assembled polyoxometalates on molecular-dye-functionalized diamond. J Am Chem Soc 131:18293–1829810.1021/ja908131t ↗